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Re: [Xen-devel] xen: 82599 passthrough problem

>>> On 16.05.16 at 05:41, <liuenliang@xxxxxxxxxx> wrote:
> I also met this problem when passthrough 82599 to domU by SRIOV, and the 
> call stack as follows:
> (XEN) Xen call trace:
> (XEN)    [<ffff82c480140143>] panic+0xc3/0x1a0
> (XEN)    [<ffff82c480126f62>] symbols_lookup+0x22/0x2a0
> (XEN)    [<ffff82c480221468>] syscall_enter+0x88/0x8d
> (XEN)    [<ffff82c480221468>] syscall_enter+0x88/0x8d
> (XEN)    [<ffff82c48012750a>] __print_symbol+0x8a/0xc0
> (XEN)    [<ffff82c480221468>] syscall_enter+0x88/0x8d
> (XEN)    [<ffff82c48018d430>] show_stack+0x110/0x180
> (XEN)    [<ffff82c48016ed78>] __pirq_guest_unbind+0x2d8/0x340
> (XEN)    [<ffff82c48016ed78>] __pirq_guest_unbind+0x2d8/0x340
> (XEN)    [<ffff82c48018e274>] do_invalid_op+0x394/0x420
> (XEN)    [<ffff82c4802218f8>] handle_exception_saved+0x30/0x6e
> (XEN)    [<ffff82c48016ed76>] __pirq_guest_unbind+0x2d6/0x340
> (XEN)    [<ffff82c48016ce04>] domain_spin_lock_irq_desc+0x64/0xa0
> (XEN)    [<ffff82c48016f1dd>] pirq_guest_unbind+0x5d/0x160
> (XEN)    [<ffff82c480146b89>] pci_release_devices+0x129/0x220
> (XEN)    [<ffff82c480164028>] domain_relinquish_resources+0xa8/0x2a0
> (XEN)    [<ffff82c4801054e4>] domain_kill+0x84/0x100
> (XEN)    [<ffff82c480103364>] do_domctl+0x9c4/0x1620
> (XEN)    [<ffff82c480221468>] syscall_enter+0x88/0x8d
> 1) The version of xen-syms is xen-syms-4.1.2_115 and the passthrough is done 
> via 'pci='. 

I guess we first of all need to know whether this is an issue on
newer, still maintained versions of Xen - 4.1.x has been out of
maintenance for quite some time.


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